Earlier quoted context omitted.
> … but I was really REALLY hoping to snap my first name which was registered by a European person 10 years ago, has 0 followers, and has never posted. I created a Twitter account in 2012 and it was immediately put in “private mode” because I didn’t want to post anything; ±7 years later the account is still empty, no posts, no followers, nada. The only reason I created that account was to prevent cybersquatting over…
> Can you imagine if I release my Twitter account, after almost a decade of constant cultivation of my other professional profiles (GitHub, GitLab, LinkedIn, etc) and then someone starts posting malicious messages to make my username look bad? Oh no, you'll be just like everyone else under the sun who has to use different names in different places. You aren't special and no-one really cares.
Come on now.
If someone uses the same username in multiple places, and another site has a user with the same name, it’s easy to assume they are the same person. If there is a risk of impersonation or confusion with another account, it’s fair to try to protect your reputation by registering an account in that name and not posting, especially if you are well-known in some internet circles.